Home / 8,452.40-11,663.72-4,915.36

Finding the Fourth Proportional to 8,452.40, 11,663.72 and 4,915.36

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Solution

The fourth proportional to 8,452.40, 11,663.72 and 4,915.36 is: 6,782.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,452.40 : 11,663.72 = 4,915.36 : x
  2. Step 2: Convert to fraction form
    8,452.40/11,663.72 = 4,915.36/x
  3. Step 3: Cross multiply
    8,452.40x = 11,663.72 × 4,915.36
  4. Step 4: Simplify right side
    8,452.40x = 57,331,382.74
  5. Step 5: Solve for x
    x = 57,331,382.74/8,452.40
  6. Step 6: Final answer
    x = 6,782.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.